nMP GUI peformance Yosemite PB4 lacking

[Surfheart]

I'm fairly dissapointed in the GUI peformance on my d700 equipped nMP with the latest Yosemite PB4 particularly swiping between spaces with fullscreen apps.

My Retina macbook with integrated GPU is smoother...

 

[anticipate]

I'm not seeing the same issues on testing an 8c nMP with D700s and 64GB RAM. And we are testing using 4K displays, scaled. If anything the GM Candidate is smoother than others. Certainly similar to Mavericks.

 

[ddacunha]

Open a http://bugreport.apple.com/ and send them the result of $ sudo sys diagnose they do follow up

 

[peabo]

I see the same problem with d700s, everything is choppy and stuttery. Haven't seen UI animations this slow since I was using 10.0 on my Snow iMac.